GPA Calculator
Add your courses with their letter grades (A+ through F) and credit hours to instantly calculate your cumulative GPA on the standard US 4.0 scale. The calculator supports any number of courses and handles fractional credit hours.
For high school students taking honors or AP classes, enable the weighted GPA option to add a +0.5 or +1.0 point boost to qualifying courses. The weighted scale lets your GPA exceed 4.0, which is how many high schools report honors-track performance.
Useful for checking your standing mid-semester, estimating the impact of a grade on your cumulative GPA, or preparing college applications. Everything runs in your browser with no data stored or sent anywhere.
By The Paper Room Editorial Team — Calculator Tools
Frequently asked questions
How is GPA calculated on a 4.0 scale?▼
Each letter grade is assigned a point value: A/A+ = 4.0, A- = 3.7, B+ = 3.3, B = 3.0, B- = 2.7, C+ = 2.3, C = 2.0, C- = 1.7, D+ = 1.3, D = 1.0, D- = 0.7, F = 0.0. Your GPA is the sum of (grade points x credit hours) for each course, divided by total credit hours.
What is the difference between weighted and unweighted GPA?▼
An unweighted GPA uses the standard 4.0 scale for all courses. A weighted GPA adds extra points (typically +0.5 or +1.0) for honors, AP, or IB courses, so a weighted GPA can exceed 4.0. Many high schools report both. Colleges generally recalculate GPA on their own scale regardless.
Does a plus or minus on a grade affect GPA?▼
Yes. On the standard 4.0 scale, an A- is 3.7 (not 4.0), a B+ is 3.3 (not 3.0), and so on. The only exception is A+, which is typically still 4.0 on an unweighted scale — very few schools award 4.3 for an A+. This calculator treats A+ as 4.0.
How many credit hours is a typical course?▼
Most semester-long college courses are 3 credit hours. Lab sciences are often 4. Some seminars and electives are 1-2 credits. In high school, a year-long course is typically counted as 1 credit (some schools use different scales). Enter whatever your school uses.